• 디지털산업정보학회논문지
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• 제19권1호
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• pp.77-89
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• 2023

The purpose of this study is to empirically confirm what is an important variable of organizational change by intelligent technology acceptance and whether is a difference in important variables in the organization level of acceptance of intelligent technology. Recently, business models using intelligent technologies such as chat-bots, self-driving cars, credit-prevention fraud, face recognition, and health-care are emerging. External situation factors such as artificial intelligence, big data, COVID-19, and the ESG management are changing the direction of a company's management strategy. This research method established a structural equation model. As a result of the analysis, we found that the leadership, organizational culture, and organizational cooperation variables had a positive effect on human resource development variables. Human resource development found a positive effect on the performance of intelligent technology. In addition, we found the independent variables of leadership, organizational culture, and organizational cooperation had partial mediating effects on the performance of intelligent technology. Each group of levels of intelligent technology found performance differences. The organizational culture variables appeared as important variables in all groups. On the other hand, the leadership variable appeared as an important variable in the middle and lower groups of intelligent technology. The theoretical background of this study is that the business theory was updated through artificial intelligence and intelligent technology theory. As a practical implication, the organization adopting intelligent technology is necessary to prepare a systematic plan for organizational culture change.

• International Journal of Control, Automation, and Systems
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• 제6권6호
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• pp.915-927
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• 2008

Networked control systems(NCSs) have gained increasing attention in recent years due to their advantages and potential applications. The network Quality-of-Service(QoS) in NCSs always fluctuates due to changes of the traffic load and available network resources. To handle the network QoS variations problem, this paper presents an intelligent scheduling control method for NCSs, where the sampling period and the control parameters are simultaneously scheduled to compensate the effect of QoS variation on NCSs performance. For NCSs with network-induced delays and packet dropouts, a discrete-time switch model is proposed. By defining a sampling-period-dependent Lyapunov function and a common quadratic Lyapunov function, the stability conditions are derived for NCSs in terms of linear matrix inequalities(LMIs). Based on the obtained stability conditions, the corresponding controller design problem is solved and the performance optimization problem is also investigated. Simulation results are given to demonstrate the effectiveness of the proposed approaches.

• Journal of Information Processing Systems
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• 제18권6호
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• pp.763-769
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• 2022

Transportation allocation requires information such as storage location and order information. In order to guarantee the safe transmission and real-time sharing of information in all links, an intelligent transportation control system based on blockchain technology is designed. Firstly, the technical architecture of intelligent transportation information traceability blockchain and the overall architecture of intelligent transportation control system were designed. Secondly, the transportation management demand module and storage demand management module were designed, and the control process of each module was given. Then, the type of intelligent transportation vehicle was defined, the objective function of intelligent transportation control was designed, and the objective function of intelligent transportation control was constructed. Finally, the intelligent transportation control was realized by genetic algorithm. It was found that when the transportation order volume was 50×103, and the CPU occupancy of the designed system was only 11.8%. The reliability attenuation of the code deletion scheme was lower, indicating better performance of the designed system.

• 로봇학회논문지
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• 제4권3호
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• pp.201-209
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• 2009

In this paper, we deal with the performance evaluation method of user identification and user tracking for intelligent robots using face images. This paper shows general approaches for standard evaluation methods to improve intelligent robot systems as well as their algorithms. The evaluation methods proposed in this paper can be combined with the evaluation methods for detection algorithms of face region and facial components to measure the overall performance of face recognition in intelligent robots.

• 한국ITS학회 논문지
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• 제16권1호
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• pp.176-185
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• 2017

본 논문은 지능형교통시스템(ITS: Intelligent Transport System)을 위한 V2X 간의 무선통신시스템에 적용되는 WAVE(Wireless Access in Vehicle Environments) 안테나 시스템에 대한 연구이다. 5.825~5.9GHz 주파수대역의 WAVE 통신은 차량이 주행하면서 도로 인프라에 설치되어 있는 기지국과 다른 차량에 장착되어 있는 단말기간의 무선통신에 사용할 수 있도록 하는 표준화된 프로토콜이다. 최근의 WAVE 통신시스템 연구에서는 통신거리에 따른 통신성능을 향상시키기 위해서 기지국과 차량 단말기 기술개발 위주로 연구되고 있으나, 본 논문에서는 시스템 성능 개선 가능성을 검토하고자 차량 루프에 장착가능한 자동차용 안테나 시스템의 설계구조 개선에 대한 연구를 진행하였다. WAVE 안테나 베이스 구조에 EBG(Electro Band-Gap) 구조를 적용하여 비교시뮬레이션을 통해 반사손실이 저감되어 성능이 향상되는 것을 확인하였다.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2007년도 하계종합학술대회 논문집
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• pp.393-394
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• 2007

Speaker Recognition for the Intelligent Service Robot is implemented in this paper. For this purpose, we perform speaker recognition based on Gaussian Mixture Model(GMM) and use robot platform called WEVER, which is a Ubiquitous Robotic Companion(URC) intelligent service robot developed at Intelligent Robot Research Division in ETRI. The experimental results reveals that the approach presented in this paper yields a good identification (89.00%) performance within 2 meter distance.

• 전기학회논문지
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• 제61권7호
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• pp.944-949
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• 2012

As modern power systems become large and complicated, the automated voltage and reactive power control system is required in most developed countries due to the recent amazing progress of computer net works and information thechnology. So far the voltage control has been depend on human operator in korean power system. This paper presents an intelligent voltage control system based on sensitivity analysis and artificial intelligence technology. Detailed state space modeling technique is discussed and a new performance index is proposed to speed up the searching performance of the expert system. As the searching strategy is very important factor of the speed of expert system the least first search algorithm is applied using this performance index. The intelligent voltage control system is applied to the Jeju power system. As a result, case studies showed a promissing application of the intelligent voltage control system.

• 전력전자학회:학술대회논문집
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• 전력전자학회 2020년도 전력전자학술대회
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• pp.302-303
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• 2020

본 논문은 모듈 평가를 위한 태양광 PCS 개발과 이에 적용되는 모듈 성능 비교에 대해 다룬다. 개발되는 인버터는 3상 380V, 26.5kW 급으로 MNPC 타입의 전력반도체 모듈을 적용한다. 전력반도체 모듈 국내 개발품과 해외 선진사 제품(Vincotech사)의 성능비교를 위해 데이터시트를 기반으로 손실 분석을 수행하였다. 그리고 이를 검증하기 위해 개발된 전력모듈을 평가용 인버터에 적용하여 부하별 효율 비교 평가를 진행하였다.

• 한국ITS학회 논문지
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• 제7권6호
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• pp.110-120
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• 2008

인지무선(CR: Cognitive Radio) 기술은 최근의 스펙트럼 부족 문제 때문에 사용하지 않는 스펙트럼 대역을 효과적으로 사용하기 위해서 제안되었다. 인지무선 기술에서 스펙트럼 센싱 기술은 주요 이슈 중의 하나이고, 비면허 사용자는 1차 사용자에게 할당된 빈 스펙트럼 자원을 확인하고 활용할 수 있다. 본 논문에서는 협력 스펙트럼 센싱 기술을 지능형 교통시스템(ITS: Intelligent Transport system)에 적용하여 신호 검출의 성능을 분석한다. 그리고 협력 신호 검출을 위해서 OR-rule과 AND-rule을 사용하여 신호 검출의 성능과 신뢰성을 향상시킨다.

• 한국정밀공학회지
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• 제26권12호
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• pp.131-137
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• 2009

Recent technological advances made a vehicle more intelligent to increase safety and comfort. An intelligent vehicle provides drivers with safety warning information through audible sounds, visual displays, and tactile devices. However, elderly drivers have been known to decrease the physical and cognitive abilities such as muscular strength, hearing, eyesight, short term memory, and spatial perception. Therefore, possible age-related deficits should be considered to design an effective warning system. This paper aims to evaluate the impact of advancing age on response performance on audible safety warnings which are widely used for alerting driving hazards. In order to understand the effect of age-related hearing loss and movement slowing, three sound characteristics (frequency, intensity, and period) and three age groups (younger, middle, and older) are considered. Data was drawn from 38 drivers who drove a simulated rural road in a driving simulator. Experimental results show that age influences driver's response performance. In conclusion, the appropriate range of a warning sound is suggested.